CN211901239U

CN211901239U - Anti-loose jacking device

Info

Publication number: CN211901239U
Application number: CN202020333192.9U
Authority: CN
Inventors: 朱小城
Original assignee: Shenzhen Jitong Technology Development Co ltd
Current assignee: Shenzhen Jitong Technology Development Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-11-10
Anticipated expiration: 2030-03-17

Abstract

The utility model provides a locking tight device in top, include crossbeam, screw rod and locate the briquetting of screw rod tip is through adjusting the screw rod is in order to adjust the briquetting with the distance of crossbeam, locking tight device in top still includes solid fixed ring and slip ring, gu fixed ring cover establishes on the screw rod, the slip ring is located gu fixed ring periphery can for gu fixed ring along the axial of screw rod slides, gu be equipped with elasticity limit structure on the fixed ring, elasticity limit structure's both ends are supported respectively and are held the screw rod and the slip ring, the slip ring inboard be equipped with the recess of elasticity limit structure outer end adaptation, through removing the slip ring is so that elasticity limit structure gets into or shifts out the recess, and then change elasticity limit structure acts on the pressure of screw rod. The utility model discloses can improve locking effect.

Description

Anti-loose jacking device

Technical Field

The utility model relates to a locking tight device in top.

Background

The jacking device is applied to various fields, such as a grinding tank of a jacking ball mill. The tight device in top generally includes crossbeam, screw rod and locates the briquetting of screw rod tip, makes the screw rod rotate for the crossbeam through adjusting screw, and then makes the interval change of briquetting and crossbeam to realize the tight effect in top, push up tight back, lock in order to prevent not hard up through the nut. Under the environment of high-speed rotation, can lead to the briquetting can't with by compressing tightly (for example grind the jar) between can't closely laminate to lead to the nut to become flexible gradually simultaneously, can't continue to realize locking effect, high-speed rotation can lead to by compressing tightly the thing and throw away, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve one of the technical problems in the related art to a certain extent, it is necessary to provide a locking and tightening device to improve the locking effect.

The utility model provides a locking tight device in top, include crossbeam, screw rod and locate the briquetting of screw rod tip is through adjusting the screw rod is in order to adjust the briquetting with the distance of crossbeam, locking tight device in top still includes solid fixed ring and slip ring, gu fixed ring cover establishes on the screw rod, the slip ring is located gu fixed ring periphery can for gu fixed ring along the axial of screw rod slides, gu be equipped with elasticity limit structure on the fixed ring, elasticity limit structure's both ends are supported respectively and are held the screw rod and the slip ring, the slip ring inboard be equipped with the recess of elasticity limit structure outer end adaptation, through removing the slip ring is so that elasticity limit structure gets into or shifts out the recess, and then change elasticity limit structure acts on the pressure of screw rod.

Furthermore, the elastic limiting structure comprises a spring and limiting balls positioned at two ends of the spring.

Furthermore, the outer side surface of the screw rod is provided with a strip-shaped groove which extends along the axis and is matched with the inner end of the elastic limiting structure.

Further, the fixing ring is fixed relative to the cross beam.

Further, the fixing ring is fixed with the cross beam through a shaft sleeve, and the shaft sleeve is in threaded connection with the screw.

Furthermore, a pre-tightening spring is arranged between the sliding ring and the fixing ring, and the pre-tightening spring is used for pre-tightening the sliding ring to keep the elastic limiting structure in a state of moving out of the groove.

Furthermore, the fixed ring is fixed with a positioning pin, and the sliding ring is provided with a sliding hole for the positioning pin to pass through.

Furthermore, the pre-tightening spring is sleeved on the locating pin.

Further, the cross beam comprises three gripper type cross beams distributed around the screw rod in an annular array.

Furthermore, the device also comprises a containing tank for containing the pre-tightening object, wherein the containing tank is provided with a plurality of layers of clamping positions distributed in height, and each layer of clamping position is provided with a clamping groove corresponding to the gripper.

According to the above technical scheme, the utility model discloses remove the slip ring, get into to the recess of slip ring until elasticity limit structure's outer end, the pressure that acts on the screw rod reduces in elasticity limit structure the inner, the screw rod is twisted soon to the accessible this moment to adjust the distance of briquetting and crossbeam, will be compressed tightly the thing top after, slip ring reverse movement makes elasticity limit structure's outer end shift out the recess, the pressure increase that elasticity limit structure the inner acts on the screw rod, make the screw rod be difficult to become flexible because of external environment, and then prevented not hard up by the compressing tightly thing.

Drawings

Fig. 1 is a schematic structural view of the present invention without a receiving can.

Fig. 2 is a schematic view of the structure of the belt accommodating case of the present invention.

Fig. 3 is a vertical cross-sectional view of the present invention without the storage can.

Fig. 4 is a horizontal plane sectional view at the height of the elastic limit structure of the present invention-state 1.

Fig. 5 is a horizontal plane sectional view of the present invention at the height of the elastic limit structure-state 2.

Fig. 6 is a partial schematic view of fig. 3.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, the anti-loosening and tightening device according to the embodiment of the present invention includes a cross beam 10, a screw 20, and a pressing block 30 disposed at an end of the screw 20, wherein a handle 40 may be installed at a top of the screw 20, and as shown in fig. 2, the anti-loosening and tightening device may further include an accommodating tank 50.

Wherein the beam 10 comprises three gripper beams 11 distributed in an annular array around the screw 20. The lateral wall of accommodating tank 50 has the screens of multilayer height distribution, each layer screens be provided with the corresponding screens groove 51 of gripper, accommodating tank 50 directly offers screens groove 51, avoids accommodating tank 50 lateral wall fracture. The shape of the storage tank 50 is the same as that of the compact 100, and a ball mill tank is taken as an example below.

The ball milling tank is placed into the accommodating tank 50, the gripper type beam 10 is placed into the clamping groove 51 of the corresponding clamping layer according to the height of the ball milling tank, and the distance between the pressing block 30 and the beam 10 is adjusted by adjusting the screw 20.

After the adjustment is finished, the pressing block 30 tightly pushes the ball milling tank, the clamping groove 51 is tightly grasped by the grippers, so that the friction force and the clamping effect between the beam 10 and the accommodating tank 50 are enhanced, the three gripper type beams 10 can be uniformly stressed, and the bending deformation is not easy to cause.

In order to prevent the ball milling jar from moving at a high speed, the screw rod 20 moves relative to the beam 10, so that the pressing block 30 cannot continuously push the ball milling jar tightly, referring to fig. 3-6, the anti-loosening and pushing device of the present invention further comprises a fixing ring 60 and a sliding ring 70.

Specifically, the fixing ring 60 is sleeved on the screw 20. Wherein, gu fixed ring 60 with crossbeam 10 is relatively fixed, specifically, gu fixed ring 60 pass through axle sleeve 80 with crossbeam 10 is fixed, the inboard of axle sleeve 80 with screw rod 20 threaded connection, the outside of axle sleeve 80 with gu fixed ring 60 and crossbeam 10 threaded connection, thereby realize gu fixed ring 60 with crossbeam 10 is fixed.

A gap for accommodating the sliding ring 70 is formed between the fixing ring 60 and the cross beam 10. The slide ring 70 is provided on the outer periphery of the fixed ring 60 and is slidable relative to the fixed ring 60 in the axial direction of the screw 20.

The fixing ring 60 is provided with an elastic limiting structure 61, the elastic limiting structure 61 can comprise a plurality of elastic limiting structures, annular array parts are formed, the number is more, the anti-loosening range coefficient is smaller, and the effect is better.

Two ends of the elastic limiting structure 61 respectively support against the screw 20 and the sliding ring 70. The inner side of the sliding ring 70 is provided with a groove 71 matched with the outer end of the elastic limiting structure 61, and the elastic limiting structure 61 enters or moves out of the groove 71 by moving the sliding ring 70, so that the pressure of the elastic limiting structure 61 acting on the screw rod 20 is changed.

As shown in fig. 4, when the elastic limit structure 61 enters the groove 71, the pressure of the elastic limit structure 61 is small, which facilitates the screwing of the screw 20, and as shown in fig. 5, when the elastic limit structure 61 moves out of the groove 71, the pressure of the elastic limit structure 61 is large, which hinders the screw 20 from rotating relative to the beam 10.

In order to improve the limiting effect, the outer side surface of the screw rod 20 is provided with a strip-shaped groove 21 which is extended along the axis and matched with the inner end of the elastic limiting structure 61, and the inner end of the elastic limiting structure 61 is limited in the strip-shaped groove 21.

In the present embodiment, the fixing ring 60 is provided with a radial through hole 62, and the elastic stopper 61 is provided in the through hole 62. The elastic limiting structure 61 comprises a spring 611 and limiting balls 612 located at two ends of the spring 611, the limiting ball 612 at the inner end abuts against the outer side surface of the screw 20, and the limiting ball 612 at the outer end contacts with the inner side of the sliding ring 70.

As shown in fig. 6, a pre-tightening spring 90 is disposed between the sliding ring 70 and the fixing ring 60, and the pre-tightening spring 90 is used for pre-tightening the sliding ring 70 to maintain the elastic limiting structure 61 in a state of moving out of the groove 71. As shown in fig. 6, in the state a, the external force overcomes the elastic force of the pre-tightening spring 90, the pre-tightening spring 90 is compressed to reach the state B, the height of the groove 71 is consistent with the height of the elastic limit structure 61, the outer end of the elastic limit structure 61 enters the groove 71, after being loosened, the state a is restored under the elastic force of the pre-tightening spring 90, and the sliding ring 70 moves to move the outer end of the elastic limit structure 61 out of the groove 71.

The fixing ring 60 is fixed with a positioning pin 91, and the sliding ring 70 is provided with a sliding hole 72 for the positioning pin 91 to pass through, so that the sliding ring 70 can be prevented from rotating relative to the fixing ring 60, and the axial movement of the sliding ring 70 is more stable. The pre-tightening spring 90 is sleeved on the positioning pin 91.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the present invention.

Claims

1. The utility model provides a locking tight device in top, includes crossbeam, screw rod and locates the briquetting of screw rod tip is through adjusting the screw rod is in order to adjust the briquetting with the distance of crossbeam, a serial communication port, locking tight device in top still includes solid fixed ring and slip ring, gu fixed ring cover is established on the screw rod, the slip ring is located gu fixed ring periphery can for gu fixed ring along the axial of screw rod slides, gu be equipped with elasticity limit structure on the fixed ring, elasticity limit structure's both ends support respectively hold the screw rod and the slip ring, the slip ring inboard be equipped with the recess of elasticity limit structure outer end adaptation, through removing the slip ring so that elasticity limit structure gets into or shifts out the recess, and then change elasticity limit structure acts on the pressure of screw rod.

2. The anti-loose jacking device according to claim 1, wherein the elastic limiting structure comprises a spring and limiting balls at two ends of the spring.

3. The anti-loose jacking device according to claim 2, wherein the outer side surface of the screw is provided with a strip-shaped groove which extends along the axis and is matched with the inner end of the elastic limiting structure.

4. The anti-loosening jacking device according to claim 1 wherein said retainer ring is fixed relative to said cross-beam.

5. The anti-loose jacking device according to claim 4, wherein the fixing ring is fixed with the beam through a bushing, and the bushing is in threaded connection with the screw.

6. The anti-loose jacking device according to any one of claims 1 to 5, wherein a pre-tightening spring is arranged between the sliding ring and the fixed ring, and the pre-tightening spring is used for pre-tightening the sliding ring to keep the elastic limiting structure in a state of moving out of the groove.

7. The anti-loose jacking device according to claim 6, wherein the fixing ring is fixed with a positioning pin, and the sliding ring is provided with a sliding hole for the positioning pin to pass through.

8. The anti-loose jacking device according to claim 7, wherein the pre-tightening spring is sleeved on the locating pin.

9. The anti-loose jacking device according to any one of claims 1 to 5, wherein the cross beam comprises three gripper beams distributed in an annular array around the screw.

10. The anti-loose jacking device as claimed in claim 9, further comprising a holding tank for holding the objects to be pre-tightened, wherein the holding tank is provided with a plurality of layers of high-low distributed clamping positions, and each layer of clamping position is provided with a clamping groove corresponding to the gripper.